NAPA, Calif. -- The Oakland Raiders sustained a significant blow Wednesday with the news that starting left tackle Jared Veldheer will need surgery on his torn left triceps and will miss a significant portion of the upcoming season. Veldheer has been bothered by the triceps throughout training camp and had a second MRI performed on Tuesday when it did not feel any better. After consulting with doctors and the team, Veldheer decided to have the surgery. "Its a disappointment for all of us," coach Dennis Allen said. "But again were going to play 16 games this year. The teams that are able to push through those things mentally, those are the teams that have success. Everybody has injuries. Thats one well just have to deal with." Allen said Veldheer would miss a significant amount of time but hoped he would be back at some point this season. Allen said Veldheer would be a candidate to be placed on injured reserve with a designation to return, which would require him to miss at least the first eight weeks. The Raiders can place Veldheer on that list starting Sept. 3. He would be required to sit for six weeks and then could practice for two more before being eligible to be activated in time for the teams eighth game on Nov. 3 against Philadelphia. Teams can only use that designation on one player and Allen said he wouldnt know for sure whether that would be an option for Veldheer until after the surgery. The injury to Veldheer gives a shot at a starting role to Alex Barron, a former first-round pick by the St. Louis Rams who has not played a game in the NFL since 2010. "Of course its an opportunity," Barron said. "First and foremost its an opportunity to be here, period. Its another opportunity obviously to go up on the chart and help the team as best I can. My whole thing is Im going to continue to work and try to help the team as best I can." Barron was drafted 19th overall in 2005 out of Florida State but struggled for almost his entire five seasons in St. Louis. He started 74 games and played both left and right tackle but was plagued by penalties and poor blocking. He committed 43 false start penalties -- including 13 in 2006 -- and 13 holding penalties while allowing 33 sacks, according to game tracking from STATS LLC. He was traded to Dallas in 2010 and played 11 games with the Cowboys. But Barron hasnt played since, spending a little time with New Orleans and Seattle without ever getting into a game. "I think Alex has been playing very well," quarterback Matt Flynn said. "I was with him in camp last year in Seattle. He seems like a different guy here. Hes playing well, playing aggressive and really coming into his own." Veldheer was perhaps Oaklands most indispensable player, given his talent and the importance of the position he plays. He had started the past 42 games at left tackle, missing only one offensive snap in that entire time. A third-round pick out of Hillsdale College in 2010, Veldheer was an emerging left tackle in the NFL who was counted on as a major piece of the Raiders rebuilding project. Veldheer was rated by Pro Football Focus as the eighth best pass-blocking left tackle in the NFL last season. He has been responsible for just four sacks in each of the past two seasons, according to STATS LLC. "Its a real big blow," right tackle Khalif Barnes said. "Jareds a big part of our line. Hes a big guy. He comes to work every day, you never hear him complaining, just tries to go in, get the job done, he just tries to perfect his craft every day at practice. Hes a good part of our team, a good leader for our team." The Raiders have been hampered by injuries on the line throughout camp. Right guard Mike Brisiel has been out all week as he struggles to recover from off-season ankle surgery. Lucas Nix, who is batting with Tony Bergstrom for the left guard spot, has also missed significant time in camp with an undisclosed injury. Second-round pick Menelik Watson has not practiced all camp with a calf injury. With Oakland changing blocking schemes from a zone system last year to more power blocking this season, the lack of continuity on the line is concerning. "It definitely hurts," centre Stefen Wisniewski said. "Weve had a couple of left guards in there, a couple of right guards in there, and now were working with a new left tackle. But I think were all communicating really well. I think its just a matter of getting your footwork right, and getting some of those combination blocks right." Replica Soccer Jerseys . As if he had been rehearsing it, Vasquez looked around with a grimacing stare as he clinched two fists and flexed his muscles. 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Mike Smith made 36 saves.SEATTLE -- Michael Saunders hit a two-run infield single in the seventh inning to lift the Seattle Mariners to a 3-1 win over the Houston Astros on Thursday night. With the game tied at 1, the bases loaded, two outs and a full count, Saunders hit a chopper to first and narrowly outraced pitcher Tony Sipp, who was covering the bag. The batters were running on the pitch, allowing two runs to score. The play was upheld after a brief replay review. Jose Altuve homered on the games first pitch for the Astros, who have lost three in a row. Dominic Leone (1-0) pitched 1 2-3 innings for his first major league win in 16 appearances, and Fernando Rodney pitched a perfect ninth for his 12th save. Houston starter Jarred Cosart (3-4) had kept Seattles offence largely bottled up until the seventh inning. Dustin Ackley and Stefen Romero led off with singles and Cosart walked Nick Franklin to load the bases with no outs. Cosart struck out Mike Zunino before giving way to Sipp, who got pinch hitter Cole Gillespie to pop up before Saunders hit. Cosart gave up three runs on five hits and four walks over 6 1-3 innings. He struck out six. Seattle starter Roenis Elias pitched into the sixth inning, allowing three hits, with the oonly run coming on Altuves leadoff homer.dddddddddddd Elias struck out six, walked four and pitched out of jams a couple times early -- the first two batters reached in the second and third innings -- before settling down. Altuve took Elias opening pitch deep into the visitors bullpen in right field for his second home run. It was Altuves third career leadoff homer and first this season. The Mariners scratched out a run in the bottom of the first. James Jones led off with a walk, advanced to third on Saunders single and scored on Robinson Canos sacrifice fly to centre. NOTES: Houston OF George Springer was held out of the lineup after injuring his hip while getting picked off in the ninth inning Wednesday. Astros manager Bo Porter said Springer could be back as soon as Friday. ... Seattle OF Logan Morrison (strained right hamstring) will begin a rehab assignment with Triple-A Tacoma on Friday, and LHP James Paxton (strained back muscle) will make a rehab start with Tacoma on Saturday. ... The Mariners signed RHP Todd Coffey to a minor league contract. ... Seattle CF James Jones singled in the third inning to extend his hitting streak to 12 games. Jones has at least one hit in all 13 of his major league starts. ' ' '